What is Kathryn Masselam Hatch's specialty?

Kathryn Masselam Hatch (NPI 1528265824) is a Medicare-billing provider whose primary specialty is Ophthalmology in Watham, MA.

Where does Kathryn Masselam Hatch practice?

Kathryn Masselam Hatch practices in Watham, MA, based on the location reported in the CMS Medicare provider datasets for NPI 1528265824.

How much does Medicare pay Kathryn Masselam Hatch?

Kathryn Masselam Hatch (NPI 1528265824) received approximately $125K in total Medicare Part B payments, serving 301 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1528265824

Kathryn Masselam HatchM.D.

OphthalmologyWatham, MAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

787

Unique beneficiaries

—

Total services

931

Distinct HCPCS

Medicare payment

$106K

Peer benchmark

Total Medicare services vs. 558 Ophthalmology providers in MA — below median (cohort median 1,976).

PRESCRIBING · PART D · 2024

Total Rx claims

485

Beneficiaries

—

Total drug cost

$116K

Distinct drugs

Brand share

42.3%

Top prescribed drugs

Prednisolone Acetate116 claims

Erythromycin Base51 claims

Cyclosporine39 claims

Cyclosporine30 claims

Doxycycline Monohydrate30 claims

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2025

Total received

$22K

Payment records

By payment type

Consulting Fee$17K

Travel and Lodging$2K

Food and Beverage$1K

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1K

Gift$36

Top paying entities

Consulting Fee$17K

Travel and Lodging$2K

Food and Beverage$1K

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$1K

Gift$36

REFERRAL NETWORK

Where Kathryn Masselam Hatch's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 6 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Arti Ori Anesthesiology · Boston, MA	41	62
Roberta Borden Certified Registered Nurse Anesthetist (CRNA) · Manchester, CT	28	44
Quest Diagnostics Massachusetts Llc Clinical Laboratory · Marlborough, MA	24	49
Stephan Hatch Anesthesiology · New London, CT	16	24
Michael Mcsweeney Certified Registered Nurse Anesthetist (CRNA) · Jamaica Plain, MA	15	19
Mark Demont Anesthesiology · New Rochelle, NY	12	14

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history

Healthparse Signals

Monitor this provider for changes — dated NPI change events